psymon cis a single-waveform retro synthesizer. Whilst faithfully recreating the speaker in a box sound of the original game, psymon takes a bold leap into the 21st century. You are no longer limited to the 4 notes of the game, but can use every single note on your midi keyboard! wow! With a simple press of the keyboard icon you can bring modern technology to bear and have each note sustain whilst your midi key is pressed! cool! Not only that, but the notes become velocity sensitive too! OMFG! The very best of retro sound and cutting-edge technology.